# Fractures at M&M Well Service LLC
> OSHA SIR `2017076096` · 7/2/2017 · WINDSOR, COLORADO
## Severity
- **1 hospitalization**
- **Body part:** Chest, except internal location of diseases or disorders
- **Nature of injury:** Fractures
## Cause
- **Event:** Other fall to lower level 11 to 15 feet
- **Source:** Oil drilling rigs and machinery
## Employer
- **Name:** M&M Well Service LLC
- **Location:** lat 40.516 long 104.9148, WINDSOR, COLORADO, 80550
- **NAICS:** 213112
- **Jurisdiction:** 1
## Narrative

A workover crew was tripping out of a hole when the drill line parted, causing the blocks to drop from 10 to 15 feet up and fall onto the floor. The drill floor sprung up when the blocks contacted it, throwing an employee off the floor. He fell approximately 15 feet onto the ground, breaking a rib.

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*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · MORVS · CC0 1.0*